A Single-centre, Open-label Study of Multiple Doses of Tipranavir 500 mg and Ritonavir 200 mg (Twice Daily) on the Pharmacokinetic Characteristics of Methadone Administered as a Single Dose in Healthy Volunteers

A Single-centre, Open-label Study of Multiple Doses of Tipranavir 500 mg and Ritonavir 200 mg (Twice Daily) on the Pharmacokinetic Characteristics of Methadone Administered as a Single Dose in Healthy Volunteers